Energy Saving Reconstruction Effectiveness And Structure Optimization Of Existing Residential Quarter In Inner Mogolia Areas

Inner Mongolia is located in northern China, belongs to the Mongolian plateau, inthe thermal partition it is cold region. In the seven months of winter heating period,existing residential building will cost a lot of energy, so the existing residential buildingenergy saving in Inner Mongolia region is of great significance.Using Xilingol area in Inner Mongolia as the research scope, based on the presentInner Mongolia region’s existing residential building retrofit scheme, the thermalperformance analysis of the present stage retrofit scheme and energy consumptionsimulation calculation, shows the present stage retrofit scheme satisfies theimplementation details of the civil building energy efficiency design standards in InnerMongolia (DB15/T259-1997), which about energy consumption and the heat transfercoefficient, but do not meet the energy consumption and the coefficient of heat transferrequirements in "standard of residential building energy efficiency design of InnerMongolia"(DBJ02-35-2011), therefore the present stage retrofit scheme is optimized.Through the analysis of the current energy saving retrofit scheme, this article dothe existing residential building optimization research from three aspects. First of all,based on the existing building envelope material, horizontal contrasts a variety of heatpreservation material, whose thermal performance in outside window, walls, roofs inInner Mongolia region, so as to realize the optimization design of retaining structures.Then use the good solar resources in Inner Mongolia, make full use of the passive solar energy technology, change the balcony of original building to sunshine room, selectedthe most appropriate sunshine room’s energy saving outside window and public wall, sothat between the sunshine room and the master bedroom the winter indoor thermalenvironment has improved significantly, then reduce the energy consumption of heatingseason in the master bedroom. Finally, according to the characteristics of InnerMongolia region’s winter wind environment, existing residential buildings’ entrance ofthe wind environment were analyzed, and selected the size of the most appropriatedesign, in order to release the first and second floor’s tenants living room correspondinginfiltration phenomenon, as well as the existing residential building wind environmentis designed in different elevation, and the wind pressure and temperature is simulated,so as to realize the optimization design of existing residential buildings’ energy-savingrenovation.Using unbalanced insulation design principles, combined with the existing reformmeasures and materials in Inner Mongolia, to optimize the existing energy-savingretrofit scheme, through the contrast analysis of energy consumption of the program andthe thermal performance, thus optimizing the roof retrofit’s scheme and roof dose notretrofit’s scheme, then do the cost effectiveness analysis for the above schemes.Evaluation of two solutions both meet the "standard of residential building energyefficiency design of Inner Mongolia"(DBJ02-35-2011), which require energy saving of65%, optimized retrofit scheme is in a reasonable energy saving range.